Finding the Fourth Proportional to 69,580.55, 104,355.33 and 19,665.31

Step by Step Solution

1. Step 1: Write the proportion equation
   69,580.55 : 104,355.33 = 19,665.31 : x
2. Step 2: Convert to fraction form
   69,580.55/104,355.33 = 19,665.31/x
3. Step 3: Cross multiply
   69,580.55x = 104,355.33 × 19,665.31
4. Step 4: Simplify right side
   69,580.55x = 2,052,179,914.60
5. Step 5: Solve for x
   x = 2,052,179,914.60/69,580.55
6. Step 6: Final answer
   x = 29,493.59